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Old 10-25-2020, 06:58 PM   #1
spock345
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Default 122s exhaust for mild performance

I realized this weekend that my exhaust is a bit too loud. Some previous owner put in a glass pack and crappy muffler that have both rusted out. I would normally just replace the two offenders with a better muffler but the stock exhaust is tiny. What is a good size to go up to with a B18? I have the dual port manifold so I will likely keep that instead of a header. I plan to put in a D cam, put dual SU HS6s back on it and bump the compression up to 10:1 or so.
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Old 10-25-2020, 07:06 PM   #2
JohnMc
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2" should be fine. 2.25 is you plan on doing more stuff in the future.
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Old 10-26-2020, 01:13 PM   #3
dl242gt
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A two inch system with a muffler under the floor in front of the axle in the stock location works well. In the rear Volvo normally put a resonator. I recommend a resonator or a exhaust tip with a resonator in it to reduce the raspiness. For the front pipe coming off the engine manifold. You can buy the Fuel injection front pipe for a 140 series. This is a two inch exhaust and works well.
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1982 242 turbo. 338k miles. MVP coilovers and 3" exhaust. Flowed 405 with a V15. Cossie turbine housing with upgraded compressor housing. 90+, IPD remote oil filter. Some other goodness, too. Been lots of fun over 25 years. Restored in 2k. Now ready for a 2nd restoration.

1993 245 Classic, 430k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.
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Old 10-26-2020, 01:26 PM   #4
hiperfauto
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VP has a 2" sport system in mild steel for under $300. They also offer 2 different stainless steel 2" sport systems.

http://212.247.61.152/US/main.aspx?p...cle&artno=025K
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Old 10-26-2020, 01:32 PM   #5
spock345
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Quote:
Originally Posted by hiperfauto View Post
VP has a 2" sport system in mild steel for under $300. They also offer 2 different stainless steel 2" sport systems.

http://212.247.61.152/US/main.aspx?p...cle&artno=025K
That 2" sport system is exactly what I was thinking of picking up. Just wanted a sanity check that I wasn't going to make that the bottleneck with what I have planned.
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Old 10-26-2020, 01:59 PM   #6
R32RennSport
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The 2" is a great system, fits very well and you can't beat the price. I love the sporty sound and it's extremely comfortable at cruising speed down the freeway.

You can hear it here:

https://www.youtube.com/watch?v=SwYFDK3-GbU
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